I too am getting an "There was a security error when trying to login." error with google chrome 7.0.517.44 unknown.
I can login fine with safari, firefox and IE.
Originally I had an older version of chorme, v5x and I was getting a session time out error when I went to checkout.
Now, having upgraded I get the error above.
Seem suspiciously like a session\cookie issue with chorme but I can't find where to fiddle with the setting in chrome..
Any advice greatly received!
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